* {
  padding: 0;
  margin: 0;
  list-style: none;
  font-family: "微软雅黑";
}
body,
html {
  width: 100%;
  height: 100%;
  background: #f4f4f4;
}
.fw {
  font-weight: bold;
}
.ma {
  margin: 0 auto;
}
.flexbox {
  display: flex;
  display: -webkit-flex;
}
.header {
  display: flex;
  display: -webkit-flex;
  justify-content: space-around;
  align-items: center;
  height: 1.53333333rem;
  background: #FFFFFF;
}
.header .centerheader {
  font-size: 0.66666667rem;
  font-weight: bold;
  color: #ff6902;
}
.imgnav {
  height: 2.96rem;
  display: flex;
  display: -webkit-flex;
  justify-content: space-around;
  align-items: center;
  background: #ffffff;
}
.imgnav dl {
  text-align: center;
  font-size: 0.37333333rem;
}
.knowlege {
  background: #FFFFFF;
  margin-top: 0.4rem;
  font-size: 0.44rem;
}
.knowlege p {
  font-weight: bold;
}
.knowlege ul {
  display: flex;
  display: -webkit-flex;
  justify-content: space-around;
  align-items: center;
  height: 1.33333333rem;
}
.zcdz {
  background: #FFFFFF;
  margin-top: 0.4rem;
  font-size: 0.42666667rem;
  font-weight: bold;
}
.daizhangfuwu {
  background: #FFFFFF;
  display: flex;
  display: -webkit-flex;
}
.daizhangfuwu dl {
  width: 50%;
  display: flex;
  display: -webkit-flex;
  justify-content: space-around;
  align-items: center;
}
.daizhangfuwu dl dd span {
  color: #8d8d8d;
}
.rocket {
  width: 40px;
  height: 78px;
  background: url(../images/01.png) no-repeat;
  position: fixed;
  right: 50px;
  bottom: 100px;
  cursor: pointer;
  display: none;
}
.rocket.hover {
  background-image: url(../images/02.gif);
}
